Rear bumper to an automobile



FIG. 1 is a front elevational view of a rear bumper to an automobile, according to our new design;

FIG. 2 is a rear elevational view thereof;

FIG. 3 is a top view thereof, looking directly down;

FIG. 4 is a bottom view thereof, looking directly up;

FIG. 5 is a right side elevational view thereof, the opposite side thereof is identical thereto;

FIG. 6 is a right side perspective view thereof; and,

FIG. 7 is a left side perspective view thereof. 

The ornamental design for a rear bumper to an automobile, as shown and described. 